Physical Geography quiz 1 on 08/28
Ptolemy
divided the circle into 360 degrees w/ each degree having 60 minutes and each minute
Small Circle
don't pass through center of Earth
Written Scale
e.g. one inch equals 50 miles
Representational Fraction
expressed w/ colon or slash
Map
generalized view of area (2D)
Graphic Scale
(bar scale) bar graph w/ units to allow measurement of distances on a map
Prime Meridian
0 degrees
4 Classes of Projection
1) cylindrical 2) planar 3) conic 4) oval
3 Types of Absolute Scale
1) representation fraction 2) a graphic scale 3) written scale
2 Types Relative Scale
1) small (less details) 2) large (more details)
International Dateline
180 degrees
Time Zones
24 that are 15 degrees across
One Degree =
60' minutes
1' =
60'' seconds
Distance between parallel lines
69.17 miles
Day ahead?
West
Parallel
a line connecting all points along the same latitudinal angle
Latitude
angular distance north or south of equator, measured from center of earth
Longitude
angular measurement of distance east or west of Prime Meridian
Great Circle
any circle of Earth's circumference who's center coincides w/ center of Earth (only equator)
Mercator Projection
commonly used cylindrical projection which is conformal, but shows landmasses greatly distorted in polar regions
Meridian
imaginary lines that connect equal points of longitude (always cuts globe in two halves)
Degree of lat
lower near equator, higher near poles
Globe
only thing currently portrays Earth 3D
Scale
ratio of image on a map to real world
Geography
relationship w/ natural systems, geographic areas, human society & culture, or interdependence
Cartography
science & art of mapmaking, blending geography, engineering, math, computer, science, & art
Physical Geography
spatial analysis of all physical elements, processes, and systems
Spatial Analysis
study of geographic phenomenal as the arrangement of points, lines, areas or surfaces on a map (study of space around us using scientific method)
Map Projection
the reduction of the spherical Earth to a flat surface